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7mhz ssb trx

ngs·7mhz-ssb-trx

7mhz ssb trx PCB layout, top view — open source AVR/Arduino board by ngs

About the 7mhz ssb trx PCB

7mhz ssb trx is an open source AVR/Arduino PCB design by ngs, published on GitHub. It is a 2-layer board measuring 84.5 × 93.4 mm, with 82 components from 51 distinct parts.

Its main chip is the Arduino_Nano, from the AVR/Arduino family. Other key parts include the Si5351A, OLED_128x64, 7809, 7805 and SA612. By type, the board carries 32 capacitors, 16 resistors, 10 ICs, 7 inductors, 4 transistors and 4 crystals.

It belongs with the rf & radio, audio and displays & leds designs in this gallery.

From the project

7MHz SSB Transceiver

A homebrew single-conversion SSB transceiver for the 40-meter amateur radio band.

Install via Arduino IDE Library Manager:

- Adafruit GFX Library - Adafruit SSD1306 - Si5351 by Jason Milldrum NT7S - Rotary by Ben Buxton

1. Open firmware/7mhzssbtrx.ino in Arduino IDE 2. Select Board: "Arduino Nano" 3. Select Processor: "ATmega328P" (or "Old Bootloader" for clones) 4. Compile and upload

Main components on the 7mhz ssb trx

Arduino_NanoSi5351AOLED_128x6478097805SA612LM386N-1

7mhz ssb trx bill of materials (BOM)

82 components, 51 distinct parts.

QtyPartRefs
1
Arduino_Nano
U2
1
Si5351A
U3
1
OLED_128x64
U4
1
7809
U5
1
7805
U6
4
SA612
U7, U8, U9, U10
1
LM386N-1
U11
2
2SC1815
Q2, Q5
1
2SC2314
Q3
1
2SC1971
Q4
4
9MHz
Y2, Y3, Y4, Y5
1
DC_2.1mm
J2
1
2A
F2
1
DPDT-12V
K2
1
ECM
MK2
1
8ohm
SP2
1
EC11
SW2
1
10k
VR2
1
1N5819
D2
1
1N4148
D3
Show 31 more
QtyPartRefs
2
47uH
L2, L3
2
1.9uH
L4, L7
2
2.5uH
L5, L8
1
2.4uH
L6
1
0.1uF
C2
1
100uF/25V
C3
1
100uF/16V
C4
1
100uF/10V
C5
1
10nF
C6
3
100pF
C7, C16, C25
3
100nF
C8, C9, C10
4
82pF
C11, C12, C13, C14
2
390pF
C15, C24
2
820pF
C17, C20
2
20pF
C18, C22
2
47pF
C19, C23
1
10pF
C21
4
10uF
C26, C28, C29, C30
1
1uF
C27
1
100uF
C31
1
470uF
C32
1
47nF
C33
3
10k
R2, R5, R15
3
4.7k
R3, R4, R14
2
1.5k
R6, R7
1
470
R8
1
100
R9
1
4.7/2W
R10
2
680
R11, R12
2
2.2k
R13, R16
1
10
R17

7mhz ssb trx design files

The KiCad project lives in the ngs/7mhz-ssb-trx repository on GitHub; these links point at the commit this page was built from.

7mhz ssb trx: common questions

What microcontroller does the 7mhz ssb trx use?

The 7mhz ssb trx is built around the Arduino_Nano, from the AVR/Arduino family.

How big is the 7mhz ssb trx PCB?

The 7mhz ssb trx measures 84.5 × 93.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 7mhz ssb trx?

82 components, from 51 distinct parts. The full bill of materials is listed on this page.

Where can I download the 7mhz ssb trx design files?

From the ngs/7mhz-ssb-trx repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 7mhz ssb trx design in my own project?

The repository has no license, so all rights stay with ngs. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the 7mhz ssb trx without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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